Light pollution is the result of wasted light, which means wasted energy. The Campaign for Dark Skies, working with Cardiff Astronomical Society, are calling on the National Assembly for Wales to urge the Welsh Assembly Government to provide clear guidance to Welsh local authorities regarding light pollution.

Such guidance should be aimed at curbing light pollution by setting clear limits for lighting on all planning applications and by placing a statutory duty on local authorities to reduce the amount of wasted light in their area.